You are here (click or tap to change) Back to Chapter 9 Main Page
Graphing Calculator Example
9.7 Hypothesis Test to Compare Two Population Means: Matched-Pair Experiments
An English teacher wants to test if her grammar instruction is effective. Ten students are pre and post tested by counting the number of errors missed by the students reading an essay. Use the results below and a 2% significance level to test the claim that the program produces some change in the student’s ability to spot errors in written work.
Pre-test 12 14 5 21 17 18 4 7 13 10
Post-test 8 11 0 12 7 10 1 2 4 7
Ask the Professor